两脏同病出现血虚多见于下述哪两个脏()
A.心肺
B.心脾
C.心肝
D.肝肺
E.肝脾
参考答案:C
The first satellite ____telephone signals was called Early Bird.
A.was used to send
B.used to be sent
C.was used to sending
D.used to send
目前,国内外大型水轮发电机采用的()冷却方式仍处于主流地位
A、全空冷
B、水冷
C、水空轮
D、自然冷